Photo-curable adhesive composition, optical pick-up device using the same and optical recording/reproducing drive including the optical pick-up device
US7696258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2006 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Sep 23, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/672
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A photo-curable adhesive composition including an oligourethane acrylate in a range of about 10 to about 30% by weight, a reactive monomer-diluent in a range of about 32 to about 46% by weight, a polymeric filler in a range of about 20 to about 30% by weight, a photoinitiator in a range of about 2.5 to about 5.0% by weight, an antioxidant in a range of about 0.005 to about 0.02% by weight, a chlorinated polyvinyl chloride in a range of about 3.0 to about 10%, the chlorinated polyvinyl chloride having a chlorine content of about 62 to about 64% by weight, oxalic acid in a range of about 0.3 to about 2.0% by weight, a thixotropic agent in a range of about 0.5 to about 3.0% by weight, and a plasticizer in a range of about 1.0 to about 10.0% by weight, based on the total weight of the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.